<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>块元素和行内元素</title>
		<style type="text/css">
			h2
			{
				width: 350px;
				height: 50px;
				text-align: center;
				background: #39f
			}
			p{background: #060;}
			strong{
				background: #66f;
				width: 360px;
				height: 50px;
				text-align: center;
			}
			em{background: #ff0;}
			del{background: #ccc;}
		</style>
	</head>
	<body>
		<h2>h2标签定义的文本</h2>
		<p>p标签定义的文本</p>
		<p>
			<strong>strong标签定义的文本</strong>
			<em>em标签定义的文本 </em>
			<del>del标签定义的文本</del>
		</p>
	</body>
</html>